Function mapMatch

src/common/map.ts:74–83

(
  map: IdMap<MapValue>,
  obj: IdObj<ObjValue>,
  set: (map: IdMap<MapValue>, id: Id, value: ObjValue) => void,
  del: (map: IdMap<MapValue>, id: Id) => void = mapSet,
)

};

export const mapMatch = <MapValue, ObjValue>(
  map: IdMap<MapValue>,
  obj: IdObj<ObjValue>,
  set: (map: IdMap<MapValue>, id: Id, value: ObjValue) => void,
  del: (map: IdMap<MapValue>, id: Id) => void = mapSet,
): IdMap<MapValue> => {
  objMap(obj, (value, id) => set(map, id, value));
  mapForEach(map, (id) => (objHas(obj, id) ? 0 : del(map, id)));
  return map;
};

export const mapToObj = <MapValue, ObjValue = MapValue>(
  map: IdMap<MapValue> | undefined,